It’s now clear the Mercedes DRS-Duct system does in fact feed the front wing to stall the wing for better aero performance. Pictures have emerged showing how the system links the front wing to the rear wing.
Mercedes launched their 2012 car late, by missing out on the first test. It’s not clear if this delay was due to the need to repackage the car around the DRS duct, but clearly the Mercedes car needed some special adaptation to accommodate the car ducts along the car.